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2. Chrysoprase - Wikipedia

   en.wikipedia.org/wiki/Chrysoprase

   Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. Its color is normally apple-green, but varies from turquoise-like cyan to deep green. The darker varieties of chrysoprase are also referred to as prase.

3. Chalcedony - Wikipedia

   en.wikipedia.org/wiki/Chalcedony

   Chrysoprase. Chrysoprase (also spelled chrysophrase) is a green variety of chalcedony, which has been colored by nickel oxide. (The darker varieties of chrysoprase are also referred to as prase. However, the term prase is also used to describe green quartz and to a certain extent is a color-descriptor, rather than a rigorously defined mineral ...

4. Gemstones in the Bible - Wikipedia

   en.wikipedia.org/wiki/Gemstones_in_the_Bible

   Chrome chalcedony, raw. Chrome Chalcedony - Greek χρυσόπρασος chrysoprasos, the tenth foundation stone of the celestial Jerusalem (Revelations 21:20). This likely refers to a chrome chalcedony (and not a nickel-colored chrysoprase, as the word is used today), which was known in the Roman world at the time. [7]

5. Cartier Unleashes Its Imagination—Again - AOL

   www.aol.com/lifestyle/cartier-unleashes...

   Last December a Cartier Art Deco brooch estimated to sell for $100,000 to $150,000 went for almost $1.4 million at Christie’s New York. The piece—of natural pearl, tourmaline, ruby, onyx, and ...

6. Agate - Wikipedia

   en.wikipedia.org/wiki/Agate

   These agates are typically less colorful, with banded lines of grey and white chalcedony. [17] Greek agate is a name given to pale white to tan colored agate found in the former Greek colony of Sicily as early as 400 BCE. The Greeks used it for making jewelry and beads. Brazilian agate is found as sizable geodes of layered nodules. These occur ...

7. Wikipedia : WikiProject Gemology and Jewelry/Gemstones

   en.wikipedia.org/wiki/Wikipedia:WikiProject...

   Chalcedony - dab - Chalcedony quartz, Plasma. Stained chalcedony; Chrome chalcedony; Prase; Mocha stone; Bloodstone - dab - Bloodstone quartz; Heliotrope - dab - Heliotrope quartz; Chrysoprase; Carnelian - dab - Carnelian quartz, Cornelian; Sard - dab - Sard quartz; Tiger's-eye quartz. Misnomers. False lapis - dab - German lapis, Swiss lapis a ...